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Abstract / Description of output
A search for CP violation in charmless threebody Xi()(b) > pK()K() decays is performed using pp collision data recorded with the LHCb detector, corresponding to integrated luminosities of 1 fb(1) at a centerofmass energy root S = 7 TeV, 2 fb(1) at root S = 8 TeV and 2 fb(1) at = 13 TeV. A good description of the phasespace distribution is obtained with an amplitude model containing contributions from Sigma(1385), Lambda(1405), Lambda(1520), Lambda(1670), Sigma(1775) and Sigma(1915) resonances. The model allows for CP violation effects, which are found to be consistent with zero. The branching fractions of Xi()(b) > Sigma(1385)K, Xi()(b) > Lambda(1405)K, Xi()(b) > Lambda(1520)K, Xi()(b) > Lambda(1670)K, Xi()(b) > Sigma(1775)K and Xi()(b) > Sigma(1915)K decays arc also reported. In addition, an upper limit is placed on the product of ratios of Omega()(b) and Xi()(b) fragmentation fractions and the Omega()(b) > pK()K() and Xi()(b) > pK()K() branching fractions.
Original language  English 

Article number  052010 
Pages (fromto)  129 
Number of pages  29 
Journal  Physical Review D 
Volume  104 
Issue number  5 
DOIs  
Publication status  Published  20 Sept 2021 
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Beautiful Flavours: Discovering New Physics with Bhadrons and Tauleptons
1/07/22 β 30/06/26
Project: Research